Question 1

How to chain custom middleware with Alice in Go?

Accepted Answer

Define your middleware as a function returning func(http.Handler) http.Handler, then pass it to alice.New() and call .Then() with your app handler, as shown in the README example with timeoutHandler.

Question 2

Alice vs negroni for Go middleware chaining: which should I use?

Accepted Answer

Alice is minimal and focuses on syntax improvement with no extra features, while Negroni offers built-in utilities like logging and recovery. Choose Alice if you prefer a lightweight, no-abstraction approach, or Negroni for more out-of-the-box functionality.

Question 3

Can Alice handle middleware that modifies the HTTP request context?

Accepted Answer

Yes, because Alice works with standard Go HTTP handlers, any middleware that uses context.Context can be integrated as long as it follows the func(http.Handler) http.Handler pattern, but you must manage context propagation manually.

Question 4

How to add error handling between middleware in an Alice chain?

Accepted Answer

Alice doesn't provide built-in error handling; you need to implement it within each middleware function, such as using panic recovery or custom error responses, since the library makes no guarantees on execution flow.

Question 5

Is Alice compatible with Go modules and newer versions of Go?

Accepted Answer

Yes, Alice is designed to work with Go 1.0 and higher, as stated in the README, so it supports modern Go modules and should be compatible with current versions, though always check for updates in the repository.

Question 6

Best practices for structuring large projects with Alice middleware?

Accepted Answer

Organize middleware into separate packages and use alice.New() to create reusable chains for different routes, keeping handlers clean, but be mindful of the lack of dynamic composition for complex routing needs.

alice

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